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CVASU_18-19
HSC - উচ্চতর গণিত ১ম পত্র
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অধ্যায়-১০ঃ যোগজীকরণ
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∫
0
1
1
−
x
1
+
x
d
x
=
\int_{0}^{1} \frac{\sqrt{1-x}}{\sqrt{1+x}} d x=
∫
0
1
1
+
x
1
−
x
d
x
=
কত?
A.
π
2
+
1
\frac{\pi}{2}+1
2
π
+
1
B.
π
\pi
π
C.
π
2
−
1
\frac{\pi}{2}-1
2
π
−
1
D.
π
2
−
2
\frac{\pi}{2}-2
2
π
−
2
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